Unit 3 and 4 Physics Notes Year 12 ATAR.pdf

Year 12 ATAR Physics notes WA unit 3 and 4.

5. The change in velocity

and since:

it follows that the object is accelerati
Isaac Newton proposed the idea
of artificial satellites of the
Earth. He considered how a

projectile could be launched
horizontally from the top of a
high mountain so that it would
not fall to Earth.

As the launch velocity

was increased, the distance that
the object would travel before
hitting the Earth would increase
until such a time Y

velocity would be sufficient to
put the object into orbit around
the Earth. (A higher velocity
would lead to the o

escaping from the Ec

6. g-forces on Astronauts
Humans can withstand 4g

without undue concer.
Accelerations up to -10g are
tolerable for short times when
the acceleration is directed
parallel to a line drawn between
the person’s front and back.

25. l

39. photoelecfrons (produced by

the photoelectric

46. E3

e

47. it